Home / 722,192.13-996,612.92-399,895.30

Finding the Fourth Proportional to 722,192.13, 996,612.92 and 399,895.30

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Solution

The fourth proportional to 722,192.13, 996,612.92 and 399,895.30 is: 551,848.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,192.13 : 996,612.92 = 399,895.30 : x
  2. Step 2: Convert to fraction form
    722,192.13/996,612.92 = 399,895.30/x
  3. Step 3: Cross multiply
    722,192.13x = 996,612.92 × 399,895.30
  4. Step 4: Simplify right side
    722,192.13x = 398,540,820,627.80
  5. Step 5: Solve for x
    x = 398,540,820,627.80/722,192.13
  6. Step 6: Final answer
    x = 551,848.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.